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arXiv 1507.04736math.DG
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关于Poisson流形的Hynn型度量的存在性

On the existence of a Hofer type metric for Poisson manifolds

Tomasz Rybicki

摘要:

可以在泊松流形$(M,Λ)$的哈密顿群$Ham(M,Λ)$上定义一个类似的哈密顿度量$\varrho_H$,但存在它的非退化性问题。首先,我们观察到,$\varrho_H$是一个真正的度量$Ham(M,Λ)$时,所有封闭的叶(作为子集的$M$)相应的辛叶的工会是密集的。接下来,我们处理的重要类可积泊松流形。回想一下,泊松流形被称为可积的,如果它可以被实现为辛广群的单位空间。我们的主要结果表明,$\varrho_H$是一个Hessel型度量的每一个Poisson流形,允许一个Hausdorff积分。

英文摘要:

An analogue of the Hofer metric $\varrho_H$ on the Hamiltonian group $Ham(M,Λ)$ of a Poisson manifold $(M,Λ)$ can be defined but there is the problem of its non-degeneracy. First we observe that $\varrho_H$ is a genuine metric on $Ham(M,Λ)$ when the union of all closed leaves (as subsets of $M$) of the corresponding symplectic foliation is dense. Next we deal with the important class of integrable Poisson manifolds. Recall that a Poisson manifold is called integrable if it can be realized as the space of units of a symplectic groupoid. Our main result states that $\varrho_H$ is a Hofer type metric for every Poisson manifold which admits a Hausdorff integration.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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